When i bought my boat, the dealership carried yamaha and mercury. A good friend in mn loved his yamaha and no issues after 10 years. Mercury on the other hand, my cousin had bought a brand new mercury four stroke the summer before me and for no apparent reason would just shutoff, my parents mercury on their pontoon did the same after two summers only. The decision was simple for me and the yami has been great. I havent heard much about the suzukis but am seeing alot more of them on boats.